relation-discriminator-column should apply to n-1 join tables. Currently, only ElementContainerTable deals with it, which means that the parent must have a Collection of children for it to work. Since N-1 is a subset of N-M, I think it should be fairly trivial to implement this issue

Description

relation-discriminator-column should apply to n-1 join tables. Currently, only ElementContainerTable deals with it, which means that the parent must have a Collection of children for it to work. Since N-1 is a subset of N-M, I think it should be fairly trivial to implement this issue